One of the most noticeable stylized facts in finance is that stock index returns are negatively correlated with changes in volatility. The economic rationale for the effect is still controversial. The competing explanations have different implications for the origin of the relationship: Are...

Although several types of options on multiple assets are popular in today's financial markets, valuing multi-asset options is still a challenge in finance. The standard framework of multivariate normality is often inappropriate, since it ignores fat tails and other stylized facts of asset...

The market for structured products in Germany and Switzerland experienced a decade of rapid growth before the financial crisis. When Lehman Brothers went bankrupt, however, it became apparent that many private investors had not been aware of the risks involved in these certificates. There is...